Alameda County  »  18477 Walnut Rd

18477 Walnut Road, Castro Valley, CA 94546 Property Information

18477 Walnut Road, Castro Valley, CA 94546 Property Information

  • General
  • Owner
  • Documents
  • Tax
  • Permits
  • Neighborhood
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18477 Walnut Road, Castro Valley, CA 94546
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Address

Primary address 18477 Walnut Road, Castro Valley
Zip code 94546
County Alameda
Parcel ID 84D-1158-6-15

Sales & Tax Overview for 18477 Walnut Road, Castro Valley

View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.

Current property tax $1,605

Lot & Building Information for 18477 Walnut Road, Castro Valley

Building sqft 2,478
Building class Single Family Residential Homes Used as Such (1100)
Acreage 0.48
Units 1
Year built 1958
Stories 1
Bedrooms 3
Bathrooms 2
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Zoning, Use & Area Overview

Walk Score
Transit Score
Bike Score


Zoning district Single Family Residential (R1-BE-CSU-R)
School district Castro Vly Unif SCH

View more neighborhood information such as transportation, nearby schools and risk designations in the dedicated tab.

Other Property Data for 18477 Walnut Road, Castro Valley

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  • • Improvements for 18477 Walnut Road, Castro Valley , including their type, square footage, grade and when they were built.
  • Development maps such as planimetric, zoning, land use and urban landscape maps (building age and stories).
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About 18477 Walnut Road, Castro Valley

What is the year built & the total sq. ft. for 18477 Walnut Road, Castro Valley, CA 94546?

18477 Walnut Road, Castro Valley, CA 94546 was built in 1958 and has a total of 2,478 square feet.

What is the assessed value of 18477 Walnut Road, Castro Valley, CA 94546 and the property tax paid?

Assessed at $144,900, the tax amount paid for 18477 Walnut Road, Castro Valley, CA 94546 is $1,686.

When was 18477 Walnut Road, Castro Valley, CA 94546 last sold?

18477 Walnut Road, Castro Valley, CA 94546 was last sold in 11/02/2023.

Ownership Information

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Real Estate Reports:
Lucian Alixandrescu, May 27, 2026 NYC Office Market Ahead of National Curve: Manhattan Q1 Vacancy Drops to 13.1% 
New York City’s office market outpaced the U.S. on several major metrics in Q1, with Manhattan vacancy nearly 5 percentage points below the national benchmark, asking rents climbing against a downward national trend and flex inventory crossing 15 million square feet.
Laura Pop-Badiu, May 21, 2026 How to Find Land Boundaries: Free & Paid Methods
If you need to find land boundaries fast, you can start with a free county parcel/GIS viewer or a premium platform like PropertyShark to see an approximate parcel outline and lot data. However, keep in mind that a web-based land boundaries map is a starting point, not the legal finish line.
Laura Pop-Badiu, May 07, 2026 Locked-In Owners, Mobile Renters: Homeowners Stay Put as Renters Move 3.7x More Across Largest U.S. Cities 
Renters became the primary drivers of long-distance mobility across the largest U.S. cities, moving 3.7 times more than owners in 2024, as high mortgage rates and housing costs kept many homeowners in place.
Research 100M+ property records powered by:
  • 2000+ governmental and public data sources
  • 80 dedicated analysts and researchers
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Past Sales & Property History for 18477 Walnut Road, Castro Valley

Create a free account to view the complete sales history for 18477 Walnut Road, Castro Valley, including title documents, transfer conditions, mortgages and liens.

No recorded sales for this property.

Title Documents for 18477 Walnut Road, Castro Valley

To view the complete history of deeds, mortgages, assignments of leases and rents, and more, sign up for free. Available data goes back to 1966.

Date Type Amount Party 1 Party 2 Maturity Document Doc image
11/02/2023 Grant Deed
01/28/2016 Deed of Trust 05/18/2084
01/28/2016 Deed of Trust 05/18/2084
08/01/2014 Assignment (Deed of Trust)
05/22/2014 Deed of Trust 06/01/2044
05/22/2014 Trust Transfer Deed
05/19/2004 Deed
05/19/2004 Deed
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R: Recorded date
D: Document date

Property Taxes for 18477 Walnut Road, Castro Valley

Access detailed property tax data for 18477 Walnut Road, Castro Valley, CA 94546. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.

Tax year: 2025-2026
Base tax $1,687
Current property tax $1,605
Market value $144,900

Assessment History for 18477 Walnut Road, Castro Valley

Here's the assessment & property tax history for 18477 Walnut Road, Castro Valley, including the evolution of the total tax rate and corresponding property tax.

Year Assessment value Total tax rate Property tax Year over year change
2025-2026 $144,900 1.164 $1,687 +0.69%
2024-2025 $142,059 1.1791 $1,675 -48.84%
2023-2024 $139,274 2.3508 $3,274 +101.36%
2022-2023 $136,543 1.1908 $1,626 +2.52%
2021-2022 $133,866 1.1848 $1,586 +2.28%

Permits for 18477 Walnut Road, Castro Valley

The complete history of permits filed for 18477 Walnut Road, Castro Valley, including new construction or demolition permits, plus any work pertaining to plumbing, heating and sprinkler systems is available with a free account. Available data goes back to 1990.

Issued Permit Type Status
05/14/2018
       
       
       
       
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Castro Valley residential market stats

Median Sale Price
$989,000
-8.4% YoY
Median Price/Sqft
$669
3.4% YoY
Alameda County Median Sale Price
$965,000
-7.1% YoY

Access a detailed real estate market overview of Castro Valley so you can assess current trends, home values, types of properties sold and transaction volume. View the median home sale price in Castro Valley and compare it to other neighborhoods in Alameda County.

Check out recently sold homes in Castro-Valley and see how their prices compare.

Risk

Create a free account to unlock extended information for 18477 Walnut Road, Castro Valley, including whether it's located in FEMA flood zones, floodways or special flood hazard areas, as well as the Coastal barriers resources system area (COBRA).

FEMA flood zone(s) X (See more on map)
Fire hazard zone See more on map
Faults and tsunami inundation zone map
Landslides and liquefaction map

Transportation

Access the detailed traffic volume map for 18477 Walnut Road, Castro Valley to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity.

View daily traffic map

Schools

Nearest elementary schools

Name Rating Type Grade range No of students Distance to school (mi)
Castro Valley Virtual Academy 7 Public K-12 67 0.30
The Montessori Giving Tree NR Private K-6 7 0.55
Chabot Elementary School 8 Public K-5 470 0.59
Anchor Education, Inc. NR Private 3-12 18 0.66
Sterling West San Francisco Campus NR Private 3-11 27 0.67

Nearest middle schools

Name Rating Type Grade range No of students Distance to school (mi)
Castro Valley Virtual Academy 7 Public K-12 67 0.30
Anchor Education, Inc. NR Private 3-12 18 0.66
Sterling West San Francisco Campus NR Private 3-11 27 0.67
Anchor Education, Inc. School NR Private 3-12 0 0.68
Redwood Christian Schools NR Private K-12 706 0.93

Nearest high schools

Name Rating Type Grade range No of students Distance to school (mi)
Castro Valley Virtual Academy 7 Public K-12 67 0.30
Redwood Continuation High School 3 Public 9-12 122 0.30
Roy A. Johnson High School NR Public 9-12 24 0.30
Anchor Education, Inc. NR Private 3-12 18 0.66
Sterling West San Francisco Campus NR Private 3-11 27 0.67

Data provided by GreatSchools.org © 2025. All rights reserved.

Neighbors for 18477 Walnut Road, Castro Valley

Here are the neighbors for 18477 Walnut Road, Castro Valley.

Address Square feet Purchase date Purchase price
18058 Reamer Rd, Castro Valley 1,352 03/29/2013 $595,000
18060 Jaymark CT, Castro Valley 3,840 09/20/2016 $925,000
18411 Walnut Rd, Castro Valley 2,027 07/03/2003 $542,591
18063 Walnut Rd, Castro Valley 2,047 06/30/2009 $535,000
18629 Reamer Rd, Castro Valley 4,194 01/08/2014
18546 Reamer Rd, Castro Valley 3,079 01/31/2014
18248 Reamer Rd, Castro Valley 3,200 06/09/2025
18135 Reamer Rd, Castro Valley 2,350 09/26/2013 $740,000
18020 Reamer Rd, Castro Valley 1,572
18469 Walnut Rd, Castro Valley 1,188 08/21/2019 $807,000
3654 Northwood Dr, Castro Valley 1,607 07/09/2010 $400,000
18697 Walnut Rd, Castro Valley 3,633 08/18/2004 $440,000
18614 Reamer Rd, Castro Valley 1,931 06/28/2013
18353 Walnut Rd, Castro Valley 1,484 04/28/2022 $1,250,000
18382 Carmel Dr, Castro Valley 2,113 10/28/1998
18084 Reamer Rd, Castro Valley 2,201 10/16/2020
18479 Walnut Rd, Castro Valley 2,108 11/16/2015 $782,000
17975 Petersen Way, Castro Valley 1,899 06/02/2025
18761 Reamer Rd, Castro Valley 2,194 07/03/2024 $1,500,000
18713 Walnut Rd, Castro Valley 2,893 07/26/2013

Nearby ZIP Codes for 18477 Walnut Road, Castro Valley

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